Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL Great Britain. Monopolies and Mergers Commission,Roadside advertising services : a report on the supply in the United Kingdom of roadside advertising services : presented to Parliament in pursuance of Section 83 of the Fair Trading Act 1973,,H.M.S.O.,1981,HC,,0102365814,,https://cir.nii.ac.jp/crid/1130282272246446720